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Finding the Fourth Proportional to 866,713.80, 1,196,028.54 and 504,138.36

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Solution

The fourth proportional to 866,713.80, 1,196,028.54 and 504,138.36 is: 695,689.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,713.80 : 1,196,028.54 = 504,138.36 : x
  2. Step 2: Convert to fraction form
    866,713.80/1,196,028.54 = 504,138.36/x
  3. Step 3: Cross multiply
    866,713.80x = 1,196,028.54 × 504,138.36
  4. Step 4: Simplify right side
    866,713.80x = 602,963,866,668.79
  5. Step 5: Solve for x
    x = 602,963,866,668.79/866,713.80
  6. Step 6: Final answer
    x = 695,689.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.